030-300381 Rev. A 75 January 2004
UltraLine Home DSL Router (Models 7400, 7401)
User Guide
Private LAN DHCP Server Enable Default = CHECKED
If this box is CHECKED, it enables DHCP addresses to be served
from the Private LAN pool.
Private LAN Enable Default = CHECKED
If this box is CHECKED, it enables the addresses from the Private
LAN to use the NAT interface.
Modem IP Address Displays the Router’s IP address
Subnet Mask Displays the Subnet Mask, which determines what portion of an IP
address is controlled by the network and which portion is controlled
by the host.
DHCP Start Address Displays the first IP address that the DHCP server will provide.
DHCP End Address Displays the last IP address that the DHCP server will provide.
DHCP Lease Time Displays the amount of time the provided addresses will be valid,
after which the DHCP client will usually re-submit a request.
NOTE: DHCP Lease Time is displayed in the following format: (dd:hh:mm:ss)* This value must be greater than 10
seconds. The default = 01:00:00:00. Seconds must be between 0 and 59, minutes must be between 0 and 59, and
hours must be between 0 and 23.
*(dd = days, hh = hours, mm = minutes, ss = seconds).
If the settings you have entered in the Private LAN Configuration screen are incorrect, the following warnings
messages may be displayed via pop-up screens. If this occurs, check the settings in the Private LAN Configuration
screen.
Warning Message Check Private LAN DHCP Settings
Start Address is not part of the Subnet Check the value in the DHCP Start Address field
End Address is not part of the Subnet Check the value in the DHCP End Address field
End Address is below the Start Address Check the value in the DHCP End Address field
Lease time must be greater than 10 seconds Check the values in the DHCP Lease Time fields
Seconds must be between 0 and 53 Check the Seconds value in the DHCP Lease Time field
Minutes must be between 0 and 59 Check the Minutes value in the DHCP Lease Time field
Hours must be between 0 and 23 Check the Hours value in the DHCP Lease Time field
12.4.6 Public LAN Configuration – Multiple IP Address PassThrough
The following screen will be displayed if you select Public LAN from the Advanced LAN menu. Click in the
Public LAN DHCP Server Enable box. A check mark will appear in the box.
NOTE: The Public LAN feature, if available from your service provider, allows the Router to use LAN IP addresses
that are accessible from the WAN. Public LAN allows your computer to have global address ability. To utilize the
Public LAN feature on your Router, your ISP must support Public LAN and Static IP. Contact your ISP for details.